tech: Cleanup example config from prod elements

  The example config should not contain elements such as URLs from our
  production environment as people might simply copy the file without
  changing some parts and end up making unnecessary requests to our
  servers.

cozy.example.yaml

@@ -218,7 +218,7 @@ mail:
   # mail noreply address - flags: --mail-noreply-address
   noreply_address: noreply@localhost
   noreply_name: My Cozy
-  reply_to: support@cozycloud.cc
+  reply_to: support@example.org
   # mail smtp host - flags: --mail-host
   host: smtp.home
   # mail smtp port - flags: --mail-port
@@ -246,7 +246,7 @@ mail:
   contexts:
     beta:
       # If the host is set to "-", no mail will be sent on this context
-      host: smtp.cozy.beta
+      host: smtp.example.org
       port: 587
       username: {{.Env.COZY_BETA_MAIL_USERNAME}}
       password: {{.Env.COZY_BETA_MAIL_PASSWORD}}
@@ -285,7 +285,7 @@ campaign_mail:
   contexts:
     beta:
       # If the host is set to "-", no mail will be sent on this context
-      host: smtp.cozy.beta
+      host: smtp.example.org
       port: 587
       username: {{.Env.COZY_BETA_MAIL_USERNAME}}
       password: {{.Env.COZY_BETA_MAIL_PASSWORD}}
@@ -345,21 +345,21 @@ registries:
 
 # Wizard used for moving a Cozy from one place/hoster to another
 move:
-  url: https://move.cozycloud.cc/
+  url: https://move.example.org/
 
 # OnlyOffice server for collaborative edition of office documents
 office:
   default:
-    onlyoffice_url: https://documentserver.cozycloud.cc/
+    onlyoffice_url: https://documentserver.example.org/
     onlyoffice_inbox_secret: inbox_secret
     onlyoffice_outbox_secret: outbox_secret
 
 # [internal usage] Cloudery configuration
-clouderies:
-  default:
-    api:
-      url: https://manager.cozycloud.cc/
-      token: xxxxxx
+# clouderies:
+#   default:
+#     api:
+#       url: https://manager.example.org/
+#       token: xxxxxx
 
 # All the deprecated apps listed here will see their OAUTH2 Authorization
 # flow interupted and redirected to a page proposing to move to the new
@@ -377,7 +377,7 @@ deprecated_apps:
 # The list of authorized hosts to redirect to when using the authentication
 # confirm endpoint.
 authorized_hosts_for_confirm_auth:
-  - sometool.cozycloud.cc
+  - sometool.example.org
 
 notifications:
   # Activate development APIs (iOS only)
@@ -400,7 +400,7 @@ notifications:
   contexts:
     beta:
       provider: api_sen
-      url: https://sms.cozy.beta/api/send
+      url: https://sms.example.org/api/send
       token: {{.Env.COZY_BETA_SMS_TOKEN}}
 
 flagship:
@@ -457,7 +457,7 @@ contexts:
     default_redirection: drive/#/folder
     # This domain will be used as a suggestion for the members of a sharing
     # when they are asked for the URL of their Cozy instance
-    sharing_domain: mycozy.cloud
+    sharing_domain: example.org
     # Allow to customize the cozy-bar link to the help
     help_link: https://forum.cozy.io/
     # claudy actions list
@@ -483,15 +483,15 @@ contexts:
     # Allows to override the default template "Cozy" title by your own title
     templates_title: "My Personal Cloud"
     # Use a different noreply mail for this context
-    noreply_address: noreply@cozy.beta
+    noreply_address: noreply@example.org
     noreply_name: My Cozy Beta
-    reply_to: support@cozy.beta
+    reply_to: support@example.org
     # Configure the error page
-    support_address: support@cozy.beta
+    support_address: support@example.org
     # Change the limit on the number of members for a sharing
     max_members_per_sharing: 50
     # Use a different wizard for moving a Cozy
-    move_url: https://move.cozy.beta/
+    move_url: https://move.example.org/
     # Feature flags
     features:
       - hide_konnector_errors